Sodium (2S,3S,4S,5R,6R)-6-[[(1R,3S,4R,7R,8R,9S,12R,13R,17S,20S,21R,22S)-22-[(3-acetyloxy-2-methylbutanoyl)oxymethyl]-21-hydroxy-8-(hydroxymethyl)-3,4,8,12,19,19-hexamethyl-23-oxahexacyclo[18.2.1.0³,¹⁶.0⁴,¹³.0⁷,¹².0¹⁷,²²]tricos-15-en-9-yl]oxy]-4-hydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxyoxane-2-carboxylic acid